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|Title:||Nitrogen- and sulfur-codoped hierarchically porous carbon for adsorptive and oxidative removal of pharmaceutical contaminants|
|Citation:||ACS Applied Materials and Interfaces, 2016; 8(11):7184-7193|
|Publisher:||American Chemical Society|
|Wenjie Tian, Huayang Zhang, Xiaoguang Duan, Hongqi Sun, Moses O. Tade, Ha Ming Ang, and Shaobin Wang|
|Abstract:||Heteroatom (nitrogen and sulfur)-codoped porous carbons (N-S-PCs) with high surface areas and hierarchically porous structures were successfully synthesized via direct pyrolysis of a mixture of glucose, sodium bicarbonate, and thiourea. The resulting N-S-PCs exhibit excellent adsorption abilities and are highly efficient for potassium persulfate activation when employed as catalysts for the oxidative degradation of sulfachloropyridazine (SCP) solutions. The adsorption capacities of N-S-PC-2 (which contains 4.51 atom % nitrogen and 0.22 atom % sulfur and exhibits SBET of 1608 m² g⁻¹) are 73, 7, and 3 times higher than those of graphene oxide, reduced graphene oxide, and commercial single-walled carbon nanotube, respectively. For oxidation, the reaction rate constant of N-S-PC-2 is 0.28 min⁻¹. This approach not only contributes to the large-scale production and application of high-quality catalysts in water remediation but also provides an innovative strategy for the production of heteroatom-doped PCs for energy applications.|
|Keywords:||Sulfur and nitrogen codoping; persulfate; antibiotics; porous carbon; adsorption|
|Description:||Published: March 3, 2016|
|Rights:||© 2016 American Chemical Society|
|Appears in Collections:||Chemical Engineering publications|
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